I adore the Witterings in winter, the barbecue and beach towels may have to stay at home but it is invigorating to get blown along on miles of abandoned sand. In between games of hide and seek amongst the beach huts, games of football on the sticky sand and races to pieces of seaweed, I noticed some interesting patterns in the sand.

This photo shows how there tend to be broad ripples parallel to the coastline itself, but closer inspection reveals more subtle patterns and these can be used to decipher the action of the water and therefore yield more clues to direction. The ripples of sand fan out over the small hills that are exposed at low water. There are tight-packed parallel ridges where the water action is uniform, but a more confused system of diamonds where incoming water meets the returning undercurrent from earlier waves. All of these patterns can be used by walkers in low visibility to orientate themselves, if the sound of the water is not helping, but they can also be used by divers searching for a clue to the direction of coast in low visiblity.

I took this picture looking south over Halnaker Hill, the windmill can just be seen poking out at the top. On my outdoor courses I sometimes stop early on and ask people to give me as many clues to direction as possible. Quite often this leads to much frenzied studying of lichens and branches and lots of good ideas. More often than not I find myself having to point out a big one. ‘What’s the biggest clue you can see?’ Some might say the shape of the land, but very few spot the coast itself. If visibility is poor I resist the urge to borrow from a Mr Basil Fawlty and say, ‘It’s there between the land and sky.’